Glutamine is one of the most versatile of all amino acids, and among the top aminos used by elite athletes. Among its many functions, supports protein synthesis and protein degradation, functions as a nitrogen precursor and transfer, supports cellular hydration, supports growth hormone production, maintains acid balance, supports the immune system, is an energy precursor and supports glycogen production in the liver.* In short, glutamine is both anabolic and anti-catabolic.*